Morning Break: Bad Air; Demise of Measles; Happiness and Health

— Health news and commentary from around the Web, gathered by the MedPage Today staff

MedpageToday

Almost everyone in the world is breathing polluted air, the World Health Organization says. (NPR)

But the WHO also has some good news: measles has been eliminated in all of the Americas. (NBC News)

CMS said it's turning to Twitch, a social video platform, to encourage more young people to enroll in the Affordable Care Act's insurance exchanges.

The latest in cyber-viewing: a medical exam livestreamed via Google Glass. (Washington Post)

If your hubby or wife is happy, you may be healthier, research suggests. (The New York Times)

A baby boy born in April using a "three-parent embryo" technique is doing well 5 months later. (STAT)

If "everybody must get stoned," as Bob Dylan advised, how will the police determine when you're too stoned to drive? (Kaiser Health News)

One insurer thinks fitness-tracking smartwatches are good for health: Aetna will subsidize Apple Watch purchases for "some customers and employees," according to Bloomberg.

Clinical trials are beginning on a possible Zika vaccine. (JAMA)

House calls are being revived, and with good reason, Tina Rosenberg writes in The New York Times.

What should "healthy" mean on a food label? The FDA wants to know what you think.

The revolving door from the FDA to the pharmaceutical industry is alive and well, a study has found. (STAT)

Adams Farm Slaughterhouse is recalling veal, beef, and bison products for suspected E. coli contamination after seven people in four states were sickened. (CBS News)

Morning Break is a daily guide to what's new and interesting on the Web for healthcare professionals, powered by the MedPage Today community. Got a tip? Send it to us: MPT_editorial@everydayhealthinc.com.